Potter&#39;s wheel.



No. 735,355. PATENTED AUG. 4, 1903.

J. S. FISHER.

POTTERS WHEEL.

APPLIOATION FILED MAY 19, 1903.

No'MoIiBL.

u mmc.. WASHINGTON n Patented August 4, 12903.

Fries.

ATENT JAY S. FISHER, OF EAST LIVERPOOL, OHIO.

POTTERS WHEEL.

SPECIFICATION forming part of Letters Patent No. 735,355, dated August 4 1903.

Application ned Mag.- 19, 1903. sain No. 157,800. (No man.)

To all whom t may concern:

Be it known that- I, JAY S. FISHER, a citizen of the United States, residing at East Liverpool, county of Columbiana, and State of Ohio, have invented certain new and useful Improvements in Potters Wheels, of which the following is a specification.

My invention relates generally to jiggers or potters wheels, and has for its object the construction of a jigger or potters wheel which will provide a ring which will be continuously adjustable to the jigger-head and will greatly reduce the friction between the ligger-head and the ring and to afford facilities for the proper adjusting of the ring to the jiggerhead. I attain these objects by the mechanism hereinafter described, and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation with the upper part raised. Fig. 2 is a plan view of the lower part of Fig. l. Fig. 3 is a central vertical section of the part shown in Fig. 2, and Fig. 4 is a central vertical section through Fig. l. i

In carrying out my invention I employ in part the old construction of potters wheel, as shown in th'e drawings, in which E is the jigger-head, having a screw-threaded throat O, which engages the threaded end D of the revolving shaft A. Upon the upper edge of the jigger-head I form the ring F7 having its outer and inner sides converging upwardly and its upper edge flat at f, forming in crosssection the frustum of a cone. This ring is preferably made of iron, but any suitable material may be used and it maybe made either integral with the jigger-head or as a separate piece and then secured to the jigger-head in a suitable manner.

In the outwardly-extending portion H of the ring J is formed a groove I, which corresponds in shape to the ring F and is adapted to fit over the same, as shown in dotted lines in Fig. 4. At the apexV of this groove is formed a rectangular extension L. This extension permits the groove H to wear back and still to retain its original shape and keep a tight grip on the jigger-head. The upper portion of ring J is beveled at K to permit the insertion of the mold.

What I claim isl. The combination of a jigger-head, the top of which forms a ring with upwardlyconverging inner and outer surfaces, and a jigger-ring havin ga groove adapted to fit the converging top of the jiggerhead, whereby by reason of the friction between the jiggerhead and the ring, the ring adjusts itself to the jigger-head, substantially as described.

2. The combination of a jigger-head, the top of which forms a ring with upwardlyconverginginner and outer surfaces, and a jigger-ring having a groove adapted to iit the converging top of the jigger-head and a rectangular extension at the apex of said groove, substantially as described-` In testimony whereof I affix my signature in presence of two witnesses.

' JAY S. FISHER.

Witnesses FRANK E. GRossHAUs, M. A. DEAN. 

